diff --git a/Libraries/CustomComponents/ListView/ListView.js b/Libraries/CustomComponents/ListView/ListView.js
index b068737d45b..eb642d73fbe 100644
--- a/Libraries/CustomComponents/ListView/ListView.js
+++ b/Libraries/CustomComponents/ListView/ListView.js
@@ -34,7 +34,7 @@ var ScrollResponder = require('ScrollResponder');
 var StaticRenderer = require('StaticRenderer');
 var TimerMixin = require('react-timer-mixin');
 
-var isEmpty = require('fbjs/lib/isEmpty');
+var isEmpty = require('isEmpty');
 var merge = require('merge');
 
 var PropTypes = React.PropTypes;
diff --git a/Libraries/CustomComponents/ListView/ListViewDataSource.js b/Libraries/CustomComponents/ListView/ListViewDataSource.js
index cedf8b584a6..1d14e50f5b7 100644
--- a/Libraries/CustomComponents/ListView/ListViewDataSource.js
+++ b/Libraries/CustomComponents/ListView/ListViewDataSource.js
@@ -29,7 +29,7 @@
 'use strict';
 
 var invariant = require('fbjs/lib/invariant');
-var isEmpty = require('fbjs/lib/isEmpty');
+var isEmpty = require('isEmpty');
 var warning = require('fbjs/lib/warning');
 
 function defaultGetRowData(
diff --git a/Libraries/CustomComponents/NavigationExperimental/NavigationCardStack.js b/Libraries/CustomComponents/NavigationExperimental/NavigationCardStack.js
index f58c49926c9..f36fbc0fe32 100644
--- a/Libraries/CustomComponents/NavigationExperimental/NavigationCardStack.js
+++ b/Libraries/CustomComponents/NavigationExperimental/NavigationCardStack.js
@@ -36,7 +36,7 @@ const React = require('React');
 const ReactComponentWithPureRenderMixin = require('ReactComponentWithPureRenderMixin');
 const StyleSheet = require('StyleSheet');
 
-const emptyFunction = require('emptyFunction');
+const emptyFunction = require('fbjs/lib/emptyFunction');
 
 const {PropTypes} = React;
 const {Directions} = NavigationLinearPanResponder;
diff --git a/Libraries/vendor/core/isEmpty.js b/Libraries/vendor/core/isEmpty.js
new file mode 100644
index 00000000000..27f4c0069a0
--- /dev/null
+++ b/Libraries/vendor/core/isEmpty.js
@@ -0,0 +1,34 @@
+/**
+ * @generated SignedSource<<97ffcebc9ae390e734026a4f3964bff6>>
+ *
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ * !! This file is a check-in of a static_upstream project!      !!
+ * !!                                                            !!
+ * !! You should not modify this file directly. Instead:         !!
+ * !! 1) Use `fjs use-upstream` to temporarily replace this with !!
+ * !!    the latest version from upstream.                       !!
+ * !! 2) Make your changes, test them, etc.                      !!
+ * !! 3) Use `fjs push-upstream` to copy your changes back to    !!
+ * !!    static_upstream.                                        !!
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+ *
+ * @providesModule isEmpty
+ */
+
+/**
+ * Mimics empty from PHP.
+ */
+function isEmpty(obj) {
+  if (Array.isArray(obj)) {
+    return obj.length === 0;
+  } else if (typeof obj === 'object') {
+    for (var i in obj) {
+      return false;
+    }
+    return true;
+  } else {
+    return !obj;
+  }
+}
+
+module.exports = isEmpty;
diff --git a/packager/blacklist.js b/packager/blacklist.js
index 27ec2899300..acca4c167c8 100644
--- a/packager/blacklist.js
+++ b/packager/blacklist.js
@@ -19,6 +19,7 @@ var sharedBlacklist = [
 
   // fbjs forks:
   'node_modules/fbjs/lib/Map.js',
+  'node_modules/fbjs/lib/isEmpty.js',
 
   /website\/node_modules\/.*/,